Home / 98,432.91-135,902.79-75,731.85

Finding the Fourth Proportional to 98,432.91, 135,902.79 and 75,731.85

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Solution

The fourth proportional to 98,432.91, 135,902.79 and 75,731.85 is: 104,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,432.91 : 135,902.79 = 75,731.85 : x
  2. Step 2: Convert to fraction form
    98,432.91/135,902.79 = 75,731.85/x
  3. Step 3: Cross multiply
    98,432.91x = 135,902.79 × 75,731.85
  4. Step 4: Simplify right side
    98,432.91x = 10,292,169,706.86
  5. Step 5: Solve for x
    x = 10,292,169,706.86/98,432.91
  6. Step 6: Final answer
    x = 104,560.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.